should scowl
Verbo regular: scowl - scowled- scowled

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I should scowl
you should scowl
he should scowl
we should scowl
you should scowl
they should scowl 	I should be scowling
you should be scowling
he should be scowling
we should be scowling
you should be scowling
they should be scowling	I should have scowled
you should have scowled
he should have scowled
we should have scowled
you should have scowled
they should have scowled	I should have been scowling
you should have been scowling
he should have been scowling
we should have been scowling
you should have been scowling
they should have been scowling	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I should not scowl
you should not scowl
he should not scowl
we should not scowl
you should not scowl
they should not scowl 	I should not be scowling
you should not be scowling
he should not be scowling
we should not be scowling
you should not be scowling
they should not be scowling	I should not have scowled
you should not have scowled
he should not have scowled
we should not have scowled
you should not have scowled
they should not have scowled	I should not have been scowling
you should not have been scowling
he should not have been scowling
we should not have been scowling
you should not have been scowling
they should not have been scowling	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
should I scowl?
should you scowl?
should he scowl?
should we scowl?
should you scowl?
should they scowl? 	should I be scowling?
should you be scowling?
should he be scowling?
should we be scowling?
should you be scowling?
should they be scowling? 	should I have scowled?
should you have scowled?
should he have scowled?
should we have scowled?
should you have scowled?
should they have scowled? 	should I have been scowling?
should you have been scowling?
should he have been scowling?
should we have been scowling?
should you have been scowling?
should they have been scowling? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
should I not scowl?
should you not scowl?
should he not scowl?
should we not scowl?
should you not scowl?
should they not scowl? 	should I not be scowling?
should you not be scowling?
should he not be scowling?
should we not be scowling?
should you not be scowling?
should they not be scowling? 	should I not have scowled?
should you not have scowled?
should he not have scowled?
should we not have scowled?
should you not have scowled?
should they not have scowled? 	should I not have been scowling?
should you not have been scowling?
should he not have been scowling?
should we not have been scowling?
should you not have been scowling?
should they not have been scowling?